Andover Controls Continuum PS 120/240 AC 50-U User manual

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Andover Controls Corporation
1998, Andover Controls Corporation
All Rights Reserved
No part of this publication may be reproduced, read or stored in a retrieval
system, or transmitted, in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without prior written permission of
Andover Controls Corporation.
Produced in the United States of America.
Infinity is a trademark of Andover Controls Corporation. All other trademarks
are the property of their respective owners.
Continuum Power Supply Reference, Version: A Feb. 1998
Andover Controls part number: 30-3001-702
The information in this book is furnished for informational purposes only, is
subject to change without notice, and should not be construed as a commitment
by Andover Controls Corporation. Andover Controls Corporation, assumes no
liability for any errors or inaccuracies that may appear in this document.
Related Documents
Continuum CPU Reference, 30-3001-703
Continuum I/O System Reference, 30-3001-499
Continuum Display Module Reference, 30-3001-711
Andover Controls Corporation
300 Brickstone Square
Andover, MA 01810
[phone]
fax: [phone]
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Continuum Power Supply Reference
Radio Interference
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with
the instructions in this manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be required to correct the
interference at his own expense.
Note
This digital apparatus does not exceed the Class A limits for radio noise emissions
from digital apparatus set out in the Radio Interference Regulations of the
Canadian Department of Communications.
Avis
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les
limites applicables aux appareils numériques de la class A prescrites dans le
Règlement sur le brouillage radioélectrique édicté par le ministère des
Communications du Canada.
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Andover Controls Corporation
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Continuum Power Supply Reference
Contents
Introduction......................................................................1
Power Module Characteristics........................................2
Mechanical Installation....................................................3
Input Power Connection..................................................6
UPS Connections.............................................................9
External Power Indicator Connections........................10
Output Power Connection.............................................11
Operation........................................................................15
Troubleshooting ............................................................16
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Continuum Power Supply Reference 1
TCX 865
ÈNTINUUM
Power Supplies
This manual describes the installation, care and use of the Continuum power supply
modules.
The Continuum power supply modules are part of the Andover Controls Continuum
Ethernet-based intelligent building system. The Continuum system allows you to cost-
effectively mix and match DIN rail-mounted CPU, power supply, and various
combinations of I/O modules and user interfaces to meet your control and monitoring
needs. The power supplies offered include an impressive array of features.
Along with the standard 120/240 VAC module, one model reduces or eliminates the
impact of power failure through a built-in battery back-up system with integral charger.
Another allows – 48VDC power based industries such as telecommunications to provide
uninterrupted power to critical environmental monitoring and control equipment using
their own battery-backed power systems.
Each module includes provision for an optional AC power indicator LED. This option is
ideal if you mount your
Continuum system within a larger control panel or enclosure and
wish to verify power to the system from a separate location.
The power supply modules feature a sleek, lightweight casing designed for natural
convection cooling. Quick-release fasteners, built-into the back of the module, are
provided for DIN rail mountingno tools required. These fasteners also snap into a
locked position that features integral reinforced holes for panel mounting in non-DIN
situations.
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2 Andover Controls
Power Module Characteristics
The following table lists the features included in the Continuum Power Supply
Modules:
Model Input Voltage Power Output Features
PS 120/240 AC 50 120-240 VAC 50 W
PS 120/240 AC 50-U 120-240 VAC 35 W UPS
PS –48 DC 50 -41 to –53 VDC 50 W DC Input
PS 120/240 AC 50-U
The standard Continuum power module provides 35 Watts of power for the CPU and
I/O modules. It also contains features that reduce or eliminate the impact of power
failure. An external 24 VDC battery source may be connected to provide un-
interruptible power. A built-in battery charger assures the battery is charged at all
times. Using standard rechargeable lead acid batteries, this unit provides full UPS
operation including all I/O modules for up to 60 minutes at 35 watts power
consumption; full operation of the CPU module only (including modem and network
interface) with no I/O power for 4 hours; and backup of DRAM and real-time clock
only for 72 hours duration. These backup modes are selected and controlled through
Andover Controls
Plain English ® programming language.
PS 120/240 AC 50
This module is a non-UPS version of the PS 120/240 AC 50-U. This power supply
provides a full 50 Watts of power and can also be used as a extended power source
to power additional I/O modules directly, extending the capabilities of a typical
Continuum system, even to remote locations.
PS –48 DC 50
This model accepts DC input voltages from –41 to –53 VDC which allows industries
such as telecommunications to provide uninterrupted power to critical environmental
monitoring and control equipment using their own battery-backed power systems.
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Continuum Power Supply Reference 3
Mechanical Installation
Note: The power supply is intended for installation within the enclosure of
another product.
The power supply modules can be mounted to a standard DIN rail or be directly
mounted to a panel using screws. Hardware facilitating both mounting methods is
included as an integral part of the case design.
On the back of each module are molded DIN rail guide fingers. The design allows the
module to easily hook onto and slide along a standard DIN rail.
Special clamps are provided on the case that allow you to lock the module in place,
once it is in position.
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4 Andover Controls
Once the module is in the desired position, it is locked to the rail by pushing the
bottom clamps inward. After the bottom is secure, press the top clamp inward to
complete the operation.
These clamps, when extended, provide an alternative method of mounting to the DIN
rail. You can mount the module directly to a panel using the reinforced mounting
holes provided on each of the clamps.
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Continuum Power Supply Reference 5
Overall Dimensions
The overall dimensions of the power supply unit are as shown:
9.0 ''
(228.7 mm)
6.70''
(170.2 mm)
2.50 ''
(63.5 mm)
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Input Power Connection
AC Power Connection (PS 120/240 AC 50, PS 120/240 AC 50-U)
Both PS 120/240 power supply modules are powered by an external AC source. This
source is connected via three screw terminals located at the bottom of the unit as
shown below. The module should receive power from its own independent, 120-240
VAC, 50 or 60 Hz, 100 VA, unswitched circuit.
The AC connection consists of both terminals (Hot and Neutral) from the power-line
and a third wire tied to a common Earth ground.
•High voltage AC Power wiring should be routed to the conduit opening nearest
the AC power terminals.
•Do not bundle or route AC Power wiring with low voltage input or output wiring.
•Be absolutely certain that your installation complies with all aspects of the National
Electric Code, NFPA 70. Be
especially
sure that your system is properly grounded.
Warning
Make sure that AC power is
not
applied to the power cable while you are
wiring the module, or you could receive an electrical shock that is life-
threatening.
GND
(green) HOT (Black)
NEUTRAL
(white)
AC
POWER
Bottom of Case
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Continuum Power Supply Reference 7
Building Ground Requirements
Be sure that all equipment from Andover Controls is grounded to true Earth ground.
True Earth ground protects the equipment from transients and other power surges in
the area. We cannot guarantee that the controller system will operate as documented
without a properly grounded installation.
An example of a sub-standard ground is a galvanized steel cold water pipe. As the
pipe corrodes, it does not act as a true ground. The corrosion acts as an insulator,
raising the potential of the pipe with respect to the ground.
When lightning strikes in the area of the installation, it drastically changes the
potential of the Earth. Since properly grounded Andover Controls units respond to
changes in potential more rapidly than poorly grounded electrical systems, a poorly
grounded building tries to reach ground through the Andover Controls system. The
surge of current can destroy electronic components on the controller board. Surges
of much lower potential than lightning also impact the reliability of the equipment.
Inspecting the Ground
Be sure to have your grounds inspected before you begin the installation process to
be sure your municipality follows the National Electrical Code.
Many municipalities
do not follow the code and often have substandard electrical grounds.
Check your ground as follows:
Inspect the building power distribution panel for Earth-ground termination. If the
ground termination is any of the following, it is not adequate and must be corrected:
•Does not exist.
•Is connected to a corroded or galvanized pipe.
•Is connected using a small gauge wire (less than 14 AWG).
Be sure your Andover Controls cabinet is connected to the ground with a copper
conductor that terminates at the distribution panel.
Lightning Protection
Metal oxide varistors are built into the power supply to protect against power line
transients.
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DC Input Power Connection (PS –48 DC 50)
The PS –48 DC 50 power supply module is powered by an external 2 Amp –41 to
–53 VDC source. This source is connected via three screw terminals located at the
bottom of the unit as shown below.
Earth
Ground
VIN
(+)
VIN
( )
48VDC
System
Bottom of Case
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Continuum Power Supply Reference 9
UPS Connections
The following information pertains to the PS 120/240 AC 50-U model only.
Backup Battery Connection
The PS 120/240 AC 50-U power supply includes provisions for connecting an
external lead-acid battery supply to power the system in the event of a main AC
power failure.
An external 24 Volt battery pack may be sized to provide the hold-up time specified
by system requirements. Using standard 12V or 24V batteries, (120 to 160 W•Hr),
the built-in UPS circuitry provides a backup time of 60 minutes @ 35 Watts power
consumption. The integral 15 Watt battery charger has a worst case charging time of
48 hours with two (2) 12V, 7.0 AHr batteries.
The external battery pack connects to the module through a two-position screw
terminal connector. Wire the battery pack as follows: Bottom of Case
BAT
(+) BAT
( )
24VDC
Battery
Supply
12V
Battery
(+)
12V
Battery
( )
(+)
( )
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External Power Indicator Connection
All Continuum power supply modules include a connector for an external LED power-
on indicator. The signal from this connector is active when the power supply is turned
on and receiving input power (AC or DC).
Connection is via a two pin removable female Molex connector # 14-56-7022 (not
supplied). Wire the external LED as follows:
An optional cable assembly is available. Andover Controls part number 01-0010-422
is a 2 foot (60 cm) cable that includes the LED and connector.
Bottom of Case
LED
(+) LED
( )
External
LED
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Continuum Power Supply Reference 11
Output Power Connection
All Continuum power supply modules include a connector on the right upper side of
the case for distribution of the 24 VDC that it generates. Other Continuum modules
(CPU, I/O) use this output as their primary power.
The power output connector is a five pin male assembly that is designed to easily
insert directly into the left side (input) connector of any CPU or I/O module. The
signals within that connector are as follows:
PIN Function
5 +24 VDC
4 24 VDC Return
3 No Connection
2 Low Battery *
1 AC Power *
* Only on PS 120/240 AC 50-U
The power supply generates a +24 VDC source for all other modules in the system.
This power source is located on pins 4 and 5.
The UPS version of the power supply (PS 120/240 AC 50-U) includes two power
status signals on pins 1 and 2. Their function is as follows:
AC Power is a logic signal that is intended to communicate to an attached CPU
module that AC power is available. When AC is interrupted and the power supply has
switched to UPS battery mode, this signal presents a logic low to the CPU. The CPU
can use this signal to start an orderly system shutdown. For more information on the
use of this signal refer to the Continuum CPU Reference #30-3001-703.
Low Battery is a logic signal that is intended to communicate to an attached CPU
module that the voltage of the battery has dropped below 22 Volts. When the power
supply is in UPS battery mode, this signal presents a logic high to the CPU. Should
the battery voltage drop, this signal switches to a logic low. The CPU uses this signal
to start an orderly system shutdown. For more information on the use of this signal
refer to the Continuum CPU Reference #30-3001-703.
5
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12 Andover Controls
There are two ways to connect the power output of the power supply to other
modules in the system:
•Direct connection through CPU
•Auxiliary power connection
Direct Connection Through CPU
The power supply module can directly connect to others without the use of cables
through a system of built-in plugs and jacks. All modules except the power supply
include two complementary module inter-connectors.
The power supply becomes the first module feeding the CPU. All other modules are
then connected to the CPU.
Creating a system is as simple as physically plugging the modules together into a
stack.
In vertical extended systems, I/O modules may be located above or below other
modules. In this case, cable assemblies bridge the I/O modules together.
Power Suppl
y
CPU I/O I/O
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Continuum Power Supply Reference 13
Auxiliary Power Connection
In situations where a large number of I/O modules are used, the power available from
one supply module may not be sufficient. In these scenarios an auxiliary power
supply can be connected to supply necessary power to the extended I/O group.
All Continuum power supply models can be used as auxiliary power supplies.
However, the UPS version (PS 120/240 AC 50-U) must be modified slightly before it
is used.
Generally the auxiliary power supply is added to a remotely located group of I/O
modules. The I/O modules that are to be powered by the auxiliary supply still connect
to the other modules so that data may flow between the functional blocks of the
system, however, these I/O modules must receive power from only the auxiliary
supply. A special cable eliminating the 24 VDC signals is connected between the last
I/O module powered by the main power supply and the remotely located I/O modules
powered by the auxiliary supply:
Specific information regarding cable preparation and overall system layout may be
found in the Continuum I/O System Reference #30-3001-499.
Main
Power Supply
Aux.
Power Supply
5-Conductor
Cable
3-Conductor
Cable
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14 Andover Controls
Converting PS 120/240 AC 50-U Into an Auxiliary Supply
The UPS version of the 120/240 AC power supply includes two status signals that
are meant for use by a CPU module. When connecting directly to an I/O module you
want to eliminate these signals.
To disable the two status signals from connecting to the I/O modules two jumper
components must be removed from the power supply. In order to access these
components you must remove the plastic cover from the case.
1Press both cover removal tabs inward simultaneously:
2Locate the two jumper components using the diagram below:
3Carefully snip (cut) the wire leads of each of the two components. Be sure to
snip only the leads for these components. Other components in close
proximity to these are important to the operation of the supply.
4Replace the cover.
Press These Tabs
Pull Cover Upward
with Tabs Depressed
J2
J3
J2
J3
Remove
Components:
J2 & J3
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